SB2016121011 - Input validation error in Atlassian Crowd
Published: December 10, 2016 Updated: August 9, 2020
Security Bulletin ID
SB2016121011
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2016-6496)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5 allows remote attackers to execute arbitrary code via an LDAP attribute with a crafted serialized Java object, aka LDAP entry poisoning.
Remediation
Install update from vendor's website.
References
- http://www.securityfocus.com/archive/1/539655/100/0/threaded
- http://www.securityfocus.com/bid/93826
- https://confluence.atlassian.com/crowd/crowd-security-advisory-2016-10-19-856697283.html
- https://jira.atlassian.com/browse/CWD-4790
- https://www.blackhat.com/docs/us-16/materials/us-16-Munoz-A-Journey-From-JNDI-LDAP-Manipulation-To-RCE-wp.pdf